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Daniyan MO, Fisusi FA, Adeoye OB. Neurotransmitters and molecular chaperones interactions in cerebral malaria: Is there a missing link? Front Mol Biosci 2022; 9:965569. [PMID: 36090033 PMCID: PMC9451049 DOI: 10.3389/fmolb.2022.965569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 07/28/2022] [Indexed: 12/02/2022] Open
Abstract
Plasmodium falciparum is responsible for the most severe and deadliest human malaria infection. The most serious complication of this infection is cerebral malaria. Among the proposed hypotheses that seek to explain the manifestation of the neurological syndrome in cerebral malaria is the vascular occlusion/sequestration/mechanic hypothesis, the cytokine storm or inflammatory theory, or a combination of both. Unfortunately, despite the increasing volume of scientific information on cerebral malaria, our understanding of its pathophysiologic mechanism(s) is still very limited. In a bid to maintain its survival and development, P. falciparum exports a large number of proteins into the cytosol of the infected host red blood cell. Prominent among these are the P. falciparum erythrocytes membrane protein 1 (PfEMP1), P. falciparum histidine-rich protein II (PfHRP2), and P. falciparum heat shock proteins 70-x (PfHsp70-x). Functional activities and interaction of these proteins with one another and with recruited host resident proteins are critical factors in the pathology of malaria in general and cerebral malaria in particular. Furthermore, several neurological impairments, including cognitive, behavioral, and motor dysfunctions, are known to be associated with cerebral malaria. Also, the available evidence has implicated glutamate and glutamatergic pathways, coupled with a resultant alteration in serotonin, dopamine, norepinephrine, and histamine production. While seeking to improve our understanding of the pathophysiology of cerebral malaria, this article seeks to explore the possible links between host/parasite chaperones, and neurotransmitters, in relation to other molecular players in the pathology of cerebral malaria, to explore such links in antimalarial drug discovery.
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Affiliation(s)
- Michael Oluwatoyin Daniyan
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
- *Correspondence: Michael Oluwatoyin Daniyan, ,
| | - Funmilola Adesodun Fisusi
- Drug Research and Production Unit, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Olufunso Bayo Adeoye
- Department of Biochemistry, Benjamin S. Carson (Snr.) College of Medicine, Babcock University, Ilishan-Remo, Ogun State, Nigeria
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2
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Luo J, Sun Y, Li Q, Kong L. Research progress of meliaceous limonoids from 2011 to 2021. Nat Prod Rep 2022; 39:1325-1365. [PMID: 35608367 DOI: 10.1039/d2np00015f] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covering: July 2010 to December 2021Limonoids, a kind of natural tetranortriterpenoids with diverse skeletons and valuable insecticidal and medicinal bioactivities, are the characteristic metabolites of most plants of the Meliaceae family. The chemistry and bioactivities of meliaceous limonoids are a continuing hot area of natural products research; to date, about 2700 meliaceous limonoids have been identified. In particular, more than 1600, including thirty kinds of novel rearranged skeletons, have been isolated and identified in the past decade due to their wide distribution and abundant content in Meliaceae plants and active biosynthetic pathways. In addition to the discovery of new structures, many positive medicinal bioactivities of meliaceous limonoids have been investigated, and extensive achievements regarding the chemical and biological synthesis have been made. This review summarizes the recent research progress in the discovery of new structures, medicinal and agricultural bioactivities, and chem/biosynthesis of limonoids from the plants of the Meliaceae family during the past decade, with an emphasis on the discovery of limonoids with novel skeletons, the medicinal bioactivities and mechanisms, and chemical synthesis. The structures, origins, and bioactivities of other new limonoids were provided as ESI. Studies published from July 2010 to December 2021 are reviewed, and 482 references are cited.
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Affiliation(s)
- Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Yunpeng Sun
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Qiurong Li
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, People's Republic of China.
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3
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Liew HY, Tan XY, Chan HH, Khaw KY, Ong YS. Natural HSP90 inhibitors as a potential therapeutic intervention in treating cancers: A comprehensive review. Pharmacol Res 2022; 181:106260. [DOI: 10.1016/j.phrs.2022.106260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/25/2022] [Accepted: 05/10/2022] [Indexed: 10/18/2022]
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4
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Xiao LG, Li P, Yan H, Ni W, He L, Liu HY. Sarcanolides C–E: Three new lindenane sesquiterpenoid dimers with anti-inflammatory activities from Sarcandra glabra. Org Biomol Chem 2022; 20:1320-1326. [PMID: 35076650 DOI: 10.1039/d1ob02417e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three new lindenane-type sesquiterpenoid dimers, sarcanolides C–E (1–3), were isolated from the roots of Sarcandra glabra. Sarcanolide C (1) possesses a unique decacyclic scaffold with an unusual orthoformate unit. The...
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Affiliation(s)
- Long-Gao Xiao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ping Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Huan Yan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Wei Ni
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
| | - Li He
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, Kunming, 650032, China.
| | - Hai-Yang Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, and Yunnan Key Laboratory of Natural Medicinal Chemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
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5
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Alhassan AM, Ahmed QU, Malami I, Zakaria ZA. Pseudocedrela kotschyi: a review of ethnomedicinal uses, pharmacology and phytochemistry. PHARMACEUTICAL BIOLOGY 2021; 59:955-963. [PMID: 34283002 PMCID: PMC8293955 DOI: 10.1080/13880209.2021.1950776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/31/2021] [Accepted: 06/28/2021] [Indexed: 06/07/2023]
Abstract
CONTEXT Pseudocedrela kotschyi (Schweinf) Harms (Meliaceae) is an important medicinal plant found in tropical and subtropical countries of Africa. Traditionally, P. kotschyi is used in the treatment of various diseases including diabetes, malaria, abdominal pain and diarrhoea. OBJECTIVE To provide an overview of traditional medicinal claims, pharmacological properties, and phytochemical principles of P. kotschyi as a basis for its clinical applications and further research and development of new drugs. METHODS Through interpreting already published scientific manuscripts retrieved from different scientific search engines, namely, Medline, PubMed, EMBASE, Science Direct and Google scholar databases, an up-to-date review on the medicinal potentials of P. kotschyi from inception until September, 2020 was compiled. 'Pseudocedrela kotschyi', 'traditional uses', 'pharmacological properties' and 'chemical constituents' were used as search words. RESULTS At present, more than 30 chemical constituents have been isolated and identified from the root and stem bark of P. kotschyi, among which limonoids and triterpenes are the main active constituents. Based on prior research, P. kotschyi has been reported to possess anti-inflammatory, analgesic, antipyretic, anthelminthic, antimalaria, anti-leishmaniasis, anti-trypanosomiasis, hepatoprotective, antioxidant, antidiabetic, antidiarrheal, antimicrobial, and anticancer effects. CONCLUSIONS P. kotschyi is reported to be effective in treating a variety of diseases. Current phytochemical and pharmacological studies mainly focus on antimalaria, anti-leishmaniasis, anti-trypanosomiasis and anticancer potential of the root and stem bark of P. kotschyi. Although experimental data support the beneficial medicinal properties of this plant, there is still a paucity of information on its toxicity profile. Nonetheless, this review provides the basis for future research work.
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Affiliation(s)
- Alhassan M. Alhassan
- Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Qamar Uddin Ahmed
- Pharmacognosy Research Group, Department of Pharmaceutical Chemistry, Kulliyyah of Pharmacy, International Islamic University Malaysia, Kuantan, Malaysia
| | - Ibrahim Malami
- Department of Pharmacognosy and Ethnopharmacy, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
- Laboratory of Halal Science Research, Halal Products Research Institute, Universiti Putra Malaysia, Serdang, Malaysia
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6
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Gonzalez-Ramirez M, Limachi I, Manner S, Ticona JC, Salamanca E, Gimenez A, Sterner O. Trichilones A-E: New Limonoids from Trichilia adolfi. Molecules 2021; 26:3070. [PMID: 34063814 PMCID: PMC8196563 DOI: 10.3390/molecules26113070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/13/2021] [Accepted: 05/19/2021] [Indexed: 11/17/2022] Open
Abstract
In addition to the trichilianones A-D recently reported from Trichilia adolfi, a continuing investigation of the chemical constituents of the ethanol extract of the bark of this medicinal plant yielded the five new limonoids 1-5. They are characterized by having four fused rings and are new examples of prieurianin-type limonoids, having a ε-lactone which in 4 and 5 is α, β- unsaturated. The structures of the isolated metabolites were determined by high field NMR spectroscopy and HR mass spectrometry. The new metabolites were shown to have the ε-lactone fused with a tetrahydrofuran ring which is connected to an oxidized hexane ring joined with a cyclo-pentanone having a 3-furanyl substituent. As the crude extract possesses antileishmanial activity, the compounds were assayed for cytotoxic and antiparasitic activities in vitro in murine macrophage cells (raw 264.7 cells) and in Leishmania amazoniensis as well as L. braziliensis promastigotes. Metabolites 1-3 and 5 showed moderate cytotoxicity (between 30-94 µg/mL) but are not responsible for the antileishmanial effect of the extract.
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Affiliation(s)
- Mariela Gonzalez-Ramirez
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (M.G.-R.); (I.L.); (S.M.)
| | - Ivan Limachi
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (M.G.-R.); (I.L.); (S.M.)
- Instituto de Investigaciones Farmaco Bioquimicas, Universidad Mayor de San Andres, La Paz, Bolivia; (J.C.T.); (E.S.); (A.G.)
| | - Sophie Manner
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (M.G.-R.); (I.L.); (S.M.)
| | - Juan C. Ticona
- Instituto de Investigaciones Farmaco Bioquimicas, Universidad Mayor de San Andres, La Paz, Bolivia; (J.C.T.); (E.S.); (A.G.)
| | - Efrain Salamanca
- Instituto de Investigaciones Farmaco Bioquimicas, Universidad Mayor de San Andres, La Paz, Bolivia; (J.C.T.); (E.S.); (A.G.)
| | - Alberto Gimenez
- Instituto de Investigaciones Farmaco Bioquimicas, Universidad Mayor de San Andres, La Paz, Bolivia; (J.C.T.); (E.S.); (A.G.)
| | - Olov Sterner
- Department of Chemistry, Centre for Analysis and Synthesis, Lund University, 22100 Lund, Sweden; (M.G.-R.); (I.L.); (S.M.)
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7
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Bellone M, Muñoz Camero C, Chini MG, Dal Piaz F, Hernandez V, Bifulco G, De Tommasi N, Braca A. Limonoids from Guarea guidonia and Cedrela odorata: Heat Shock Protein 90 (Hsp90) Modulator Properties of Chisomicine D. JOURNAL OF NATURAL PRODUCTS 2021; 84:724-737. [PMID: 33661631 PMCID: PMC8041370 DOI: 10.1021/acs.jnatprod.0c01217] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Indexed: 06/01/2023]
Abstract
Nine new limonoids (1-9) were isolated from the stem bark of Guarea guidonia (1-4) and Cedrela odorata (5-9). Their structures were elucidated using 1D and 2D NMR and MS data and chemical methods as three A2,B,D-seco-type limonoids (1-3), a mexicanolide (4), three nomilin-type (5-7) limonoids, and two limonol derivatives (8 and 9). A DFT/NMR procedure was used to define the relative configurations of 1 and 3. A surface plasmon resonance approach was used to screen the Hsp90 binding capability of the limonoids, and the A2,B,D-seco-type limonoid 8-hydro-(8S*,9S*)-dihydroxy-14,15-en-chisomicine A, named chisomicine D (1), demonstrated the highest affinity. By means of mass spectrometry data, biochemical and cellular assays, and molecular docking, 1 was found as a type of client-selective Hsp90 inhibitor binding to the C-terminus domain of the chaperone.
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Affiliation(s)
- Maria
Laura Bellone
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
- PhD
Program in Drug Discovery and Development, Department of Pharmacy, Università degli Studi di Salerno, 84084 Fisciano
(SA), Italy
| | | | - Maria Giovanna Chini
- Dipartimento
di Bioscienze e Territorio, Università
degli Studi del Molise, 86090 Pesche (IS), Italy
| | - Fabrizio Dal Piaz
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
- Dipartimento
di Medicina, Chirurgia e Odontoiatria “Scuola Medica Salernitana”, Università degli Studi di Salerno, 84084 Fisciano
(SA), Italy
| | - Vanessa Hernandez
- Departamento
de Farmacognosia y Medicamentos Organicos, Universidad de los Andes, Mérida, 5101, Venezuela
| | - Giuseppe Bifulco
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
| | - Nunziatina De Tommasi
- Dipartimento
di Farmacia, Università degli Studi
di Salerno, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento
di Farmacia, Università di Pisa, 56126 Pisa, Italy
- CISUP,
Centro per l’Integrazione della Strumentazione Scientifica, Università di Pisa, 56126 Pisa, Italy
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8
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Happi GM, Mouthe Kemayou GP, Stammler HG, Neumann B, Ismail M, Kouam SF, Wansi JD, Tchouankeu JC, Frese M, Lenta BN, Sewald N. Three phragmalin-type limonoids orthoesters and the structure of odoratone isolated from the bark of Entandrophragma candollei (Meliaceae). PHYTOCHEMISTRY 2021; 181:112537. [PMID: 33099226 DOI: 10.1016/j.phytochem.2020.112537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/03/2020] [Accepted: 10/04/2020] [Indexed: 06/11/2023]
Abstract
The phytochemical exploration of the Entandrophragma candollei stem bark extract led to the isolation and identification of twenty compounds including three undescribed phragmalin-class limonoids named encandollens C-E (1-3), the undescribed protolimonoid 5 together with sixteen known compounds. The structures of all the isolated compounds were determined by interpretation of their spectroscopic and spectrometric data including HRMS, 1D and 2D NMR analyses. The assignment of the absolute and relative stereochemistry of the undescribed compounds was achieved using SC-XRD analyses as well as NOESY experiments. The previously reported structure of odoratone (5a) was corrected as 23 R,24 S-dihydroxy-22 S,25-epoxytirucall-7-en-3-one (5) based on its NMR and SC-XRD data. Prieurianin (4) exhibited high cytotoxic activity on KB3-1 cell lines with an IC50 of 1.47 μM compared to the reference griseofulvin (IC50 = 17-21 μM). The results of the in silico docking of compound 4 supported and delivered further insights on its cytotoxicity.
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Affiliation(s)
- Gervais Mouthé Happi
- Department of Chemistry, Higher Teacher Training College, University of Bamenda, P.O Box 39, Bambili, Cameroon; Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501, Bielefeld, Germany; Department of Chemistry, Higher Teacher Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon.
| | - Guy Paulin Mouthe Kemayou
- Department of Chemistry, Higher Teacher Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon
| | - Hans-Georg Stammler
- Inorganic and Structural Chemistry, Department of Chemistry, Bielefeld University, D-33501, Bielefeld, Germany
| | - Beate Neumann
- Inorganic and Structural Chemistry, Department of Chemistry, Bielefeld University, D-33501, Bielefeld, Germany
| | - Mohamed Ismail
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501, Bielefeld, Germany; Department of Microbiology, Faculty of Science, Helwan University, Ain Helwan, 11795, Cairo, Egypt
| | - Simeon Fogue Kouam
- Department of Chemistry, Higher Teacher Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon
| | - Jean Duplex Wansi
- Department of Chemistry, University of Douala, Faculty of Sciences, 24157, Douala, Cameroon
| | - Jean Claude Tchouankeu
- Department of Organic Chemistry, Faculty of Sciences, University of Yaounde I, 812, Yaounde, Cameroon
| | - Marcel Frese
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501, Bielefeld, Germany
| | - Bruno Ndjakou Lenta
- Department of Chemistry, Higher Teacher Training College, University of Yaounde I, P. O. Box 47, Yaounde, Cameroon
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Faculty of Chemistry, Bielefeld University, D-33501, Bielefeld, Germany
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9
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Mambou CS, Nono RN, Chouna JR, Tamokou JDD, Nkeng-Efouet-Alango P, Sewald N. Antibacterial secotirucallane triterpenes from the stem bark of Pseudocedrela kotschyi. ACTA ACUST UNITED AC 2019; 73:241-246. [PMID: 29590084 DOI: 10.1515/znc-2017-0207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 01/20/2018] [Indexed: 11/15/2022]
Abstract
The antibacterial-guided investigation of the stem bark extract of Pseudocedrela kotschyi led to the isolation of a new secotirucallane triterpene derivative: 4-hydroxy-3,4-secotirucalla-7,24-dien-3,21-dioic acid (1), together with the known one: 3,4-secotirucalla-4(28),7,24-trien-3,21-dioic acid (2) and 3-methyl ester 3,4-secotirucalla-4(28),7,24-trien-3,21-dioic (3). The structures of the isolated compounds were elucidated on the basis of extensive 1D- and 2D-NMR spectroscopy. Extracts, fractions and compounds (1-3) were tested in vitro for antibacterial activity against two Gram positive bacteria (Bacillus subtilis and Staphylococcus aureus ATCC 25923), and two Gram negative bacteria (Escherichia coli S2(1) and Pseudomonas aeruginosa). The MeOH extract and the Hex/CH2Cl2 (70:30) fraction showed significant levels of activity (MIC=64- 256 μg/mL) compared with the two reference drugs [ciprofloxacin: MIC (0.5-1 μg/mL) and amoxicillin: MIC (1-128 μg/mL)]. Moreover, the compound 2 isolated from this Hex/CH2Cl2 (70:30) fraction had the greatest potential value against S. aureus, E. coli and P. aeruginosa, with minimum inhibitory concentrations (MIC) ranging from 4-16 μg/mL.
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Affiliation(s)
- Christèle Sorèle Mambou
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Raymond Ngansop Nono
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Jean Rodolphe Chouna
- Department of Chemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon, Phone: 00 237 673551059
| | - Jean-de-Dieu Tamokou
- Department of Biochemistry, Faculty of Science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | | | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, P.O. Box 100131, 33501, Bielefeld, Germany
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10
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D'Ambola M, Fiengo L, Chini MG, Cotugno R, Bader A, Bifulco G, Braca A, De Tommasi N, Dal Piaz F. Fusicoccane Diterpenes from Hypoestes forsskaolii as Heat Shock Protein 90 (Hsp90) Modulators. JOURNAL OF NATURAL PRODUCTS 2019; 82:539-549. [PMID: 30839211 DOI: 10.1021/acs.jnatprod.8b00924] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ten new (1-10) and six known (11-16) fusicoccane diterpenes were isolated from the roots of Hypoestes forsskaolii. The structural characterization of 1-10 was performed by spectroscopic analysis, including 1D and 2D NMR, ECD, and HRESIMS experiments. From a perspective of obtaining potential Hsp90α inhibitors, the isolates were screened by surface plasmon resonance measurements and their cytotoxic activity was assayed using Jurkat and HeLa cancer cells. Compound 6, 18-hydroxyhypoestenone, was shown to be the most active compound against Hsp90, and its interactions were studied also by biochemical and cellular assays and by molecular docking.
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Affiliation(s)
- Massimiliano D'Ambola
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Lorenzo Fiengo
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Maria Giovanna Chini
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Roberta Cotugno
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy , Umm Al-Qura University , 21955 Makkah , Saudi Arabia
| | - Giuseppe Bifulco
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia , Università di Pisa , Via Bonanno 33 , 56126 Pisa , Italy
- Centro Interdipartimentale di Ricerca "Nutraceutica e Alimentazione per la Salute" , Università di Pisa , Via del Borghetto 80 , 56124 Pisa , Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
| | - Fabrizio Dal Piaz
- Dipartimento di Farmacia , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
- Dipartimento di Medicina, Chirurgia e Odontoiatria "Scuola Medica Salernitana" , Università degli Studi di Salerno , Via Giovanni Paolo II 132 , 84084 Fisciano ( SA ), Italy
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11
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Pinkerton DM, Chow S, Eisa NH, Kainth K, Vanden Berg TJ, Burns JM, Guddat LW, Savage GP, Chadli A, Williams CM. Synthesis of the seco-Limonoid BCD Ring System Identifies a Hsp90 Chaperon Machinery (p23) Inhibitor. Chemistry 2018; 25:1451-1455. [PMID: 30570197 DOI: 10.1002/chem.201805420] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 11/23/2018] [Indexed: 01/06/2023]
Abstract
D-Ring-seco-limonoids (tetranortriterpenoids), such as gedunin and xylogranin B display anti-cancer activity, acting via inhibition of Hsp90 and/or associated chaperon machinery (e.g., p23). Despite this, these natural products have received relatively little attention, both in terms of an enabling synthetic approach (which would allow access to derivatives), and as a consequence their structure-activity relationship (SAR). Disclosed herein is a generally applicable synthetic route to the BCD ring system of the seco-D-ring double bond containing limonoids. Furthermore, cell based assays revealed the first skeletal fragment that exhibited inhibition of the p23 enzyme at a level which was equipotent to that of gedunin, despite being much less structurally complex.
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Affiliation(s)
- David M Pinkerton
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Sharon Chow
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Nada H Eisa
- Georgia Cancer Center, Molecular Oncology Program, Augusta University, Augusta, GA, 30912, USA.,Biochemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Kashish Kainth
- Georgia Cancer Center, Molecular Oncology Program, Augusta University, Augusta, GA, 30912, USA
| | - Timothy J Vanden Berg
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Jed M Burns
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - Luke W Guddat
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - G Paul Savage
- CSIRO Manufacturing, Ian Wark Laboratory, Melbourne, 3168, Victoria, Australia
| | - Ahmed Chadli
- Georgia Cancer Center, Molecular Oncology Program, Augusta University, Augusta, GA, 30912, USA
| | - Craig M Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
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12
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Chen JY, Zhu GY, Su XH, Wang R, Liu J, Liao K, Ren R, Li T, Liu L. 7-deacetylgedunin suppresses inflammatory responses through activation of Keap1/Nrf2/HO-1 signaling. Oncotarget 2017; 8:55051-55063. [PMID: 28903401 PMCID: PMC5589640 DOI: 10.18632/oncotarget.19017] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 06/11/2017] [Indexed: 11/25/2022] Open
Abstract
Macrophages play a critical role in a variety of inflammatory diseases. Activation of Keap1/Nrf2/HO-1 signaling results in inactivation of macrophages and amelioration of inflammatory and autoimmune conditions. Hence, discovery for the activators of Keap1/Nrf2/HO-1 signaling has become a promising strategy for treatment inflammatory diseases. In the current study, the anti-inflammatory potential of 7-deacetylgedunin (7-DGD), a limonin chemical isolated from the fruits of Toona sinensis (A. Juss.) Roem, was intensively examined in vivo and in vitro for the first time. Results showed that 7-DGD alleviated mice mortality induced by LPS. Mechanistic study showed that 7-DGD suppressed macrophage proliferation via induction of cell arrest at the G0/G1 phase. Furthermore, 7-DGD inhibited iNOS expression, which is correlated with the increases of NQO1, HO-1 and UGT1A1 mRNA expression as well as HO-1 protein expression level in the cells. More importantly, 7-DGD markedly decreased Keap1 expression, promoted p62 expression, and facilitated Nrf2 translocation and localization in the nucleus of macrophages, and in turn up-regulates these anti-oxidant enzymes expression, eventually mediated anti-inflammatory effect. Collectively, 7-DGD suppresses inflammation in vivo and in vitro, indicating that the compound is valuable for further investigation as an anti-inflammatory agent in future.
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Affiliation(s)
- Jian-Yu Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Guo-Yuan Zhu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Xiao-Hui Su
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Rui Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Juan Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Kangsheng Liao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Rutong Ren
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Ting Li
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
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13
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Dal Piaz F, Vera Saltos MB, Franceschelli S, Forte G, Marzocco S, Tuccinardi T, Poli G, Nejad Ebrahimi S, Hamburger M, De Tommasi N, Braca A. Drug Affinity Responsive Target Stability (DARTS) Identifies Laurifolioside as a New Clathrin Heavy Chain Modulator. JOURNAL OF NATURAL PRODUCTS 2016; 79:2681-2692. [PMID: 27704815 DOI: 10.1021/acs.jnatprod.6b00627] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Five new diterpenes (1-5) and a megastigmane derivative (6) were isolated from the aerial parts of Euphorbia laurifolia, along with several known compounds. Their structures were elucidated by NMR, MS, and ECD and by chemical methods. A chemical proteomics drug affinity responsive target stability (DARTS) approach to investigate the lathyrane diterpene 1, laurifolioside, on its putative cellular target(s) was performed. Clathrin heavy chain 1, a protein mainly involved in selective uptake of proteins, viruses, and other macromolecules at the plasma membrane of cells, was identified as the major interaction partner of compound 1. The modulation of clathrin activity by 1 was studied through microscopy, molecular docking, and molecular dynamics studies, suggesting a new activity of lathyrane diterpenes in the modulation of trafficking pathways.
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Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Mariela Beatriz Vera Saltos
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas , ESPE, Avenida General Rumiñahui s/n, Sangolqui, Ecuador
| | - Silvia Franceschelli
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Giovanni Forte
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Stefania Marzocco
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
| | - Giulio Poli
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University , G. C., Evin, Tehran, Iran
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Basel, Switzerland
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
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14
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Chini MG, Malafronte N, Vaccaro MC, Gualtieri MJ, Vassallo A, Vasaturo M, Castellano S, Milite C, Leone A, Bifulco G, De Tommasi N, Dal Piaz F. Identification of Limonol Derivatives as Heat Shock Protein 90 (Hsp90) Inhibitors through a Multidisciplinary Approach. Chemistry 2016; 22:13236-50. [DOI: 10.1002/chem.201602242] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Maria G. Chini
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Nicola Malafronte
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maria C. Vaccaro
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Maria J. Gualtieri
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Pharmacognosy and Organic Drug; University of Los Andes; Sector Campo de Oro, detrás del IAHULA 5101 Mérida Venezuela
| | - Antonio Vassallo
- Department of Science; University of Basilicata; Viale dell'Ateneo Lucano 10 85100 Potenza Italy
| | - Michele Vasaturo
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- PhD Program in Drug Discovery and Development; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Sabrina Castellano
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Medicine and Surgery; University of Salerno; Via Allende 84081 Baronissi Italy
| | - Ciro Milite
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Antonietta Leone
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Giuseppe Bifulco
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Nunziatina De Tommasi
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
| | - Fabrizio Dal Piaz
- Department of Pharmacy; University of Salerno; Via Giovanni Paolo II 132 84084 Fisciano Italy
- Department of Medicine and Surgery; University of Salerno; Via Allende 84081 Baronissi Italy
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15
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The antiproliferative and proapoptotic effects of cladosporols A and B are related to their different binding mode as PPARγ ligands. Biochem Pharmacol 2016; 108:22-35. [DOI: 10.1016/j.bcp.2016.03.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 03/11/2016] [Indexed: 11/20/2022]
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16
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D'Ambola M, Malafronte N, Gualtieri M, Hernández V, Vassallo A, Severino L. A Novel Tirucallane-type Triterpene and Sesquiterpene from Trichilia maynasiana. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
One new tirucallane-type triterpene {3β, 24-dihydroxytirucallan-7,25-diene, 24-sulfate (1)}, one new sesquiterpene {7- epi-10-hydroxychabrol-1(2)-en-4,5-dione A (2)}, together with three known tirucallanes, and four aromadendranes were isolated from the leaves of Trichlia maynasiana C. DC. Their structures were determined by means of NMR spectroscopy, mass spectrometric analysis, and chemical methods.
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Affiliation(s)
- Massimiliano D'Ambola
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Settore di Farmacologia e Tossicologia - via Delpino, 1, Napoli Italy
| | - Nicola Malafronte
- Dipartimento di Farmacia Università di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Maria Gualtieri
- Department of Pharmacognosy and Organic Medicaments, University of Los Andes, 5101 Mérida, Venezuela
| | - Vanessa Hernández
- Department of Pharmacognosy and Organic Medicaments, University of Los Andes, 5101 Mérida, Venezuela
| | - Antonio Vassallo
- Dipartimento di Scienze, Università di Basilicata, Viale dell'Ateneo Lucano, 85100 Potenza, Italy
| | - Lorella Severino
- Dipartimento di Medicina Veterinaria e Produzioni Animali, Settore di Farmacologia e Tossicologia - via Delpino, 1, Napoli Italy
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17
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Haidara M, Bourdy G, De Tommasi N, Braca A, Traore K, Giani S, Sanogo R. Medicinal Plants Used in Mali for the Treatment of Malaria and Liver Diseases. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100309] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Today, ethno-pharmacology is a very important resource in order to discover new therapies for the current diseases. Moreover, another good justification for the ethno-pharmacological approach is to obtain new, effective, less expensive and simple therapies, limiting at the same time the cost of pharmaceutical research. Two major anti-malarial drugs widely used today, i.e. quinine and artemisinin, came respectively from Peruvian and Chinese ancestral treatments reported in the traditional medicines. In this contest, there is an urgent need for the discovery of new drugs, due to the critical epidemiological situation of this disease and to the growth of resistances. In Mali, malaria and liver diseases remain one of the leading public health problems. Many medicinal plants are often used, in local traditional medicine, for the treatment at the same time of malaria and liver diseases, including hepatic syndromes, jaundice, hepatitis and other hepatic disorders. Moreover, in the local language Bamanan, the word “ Sumaya” is used both for malaria and some liver diseases. In addition, we noted that some of the improved traditional phytomedicines produced by the Department of Traditional Medicine are prescribed by modern doctors both for malaria and liver diseases. In this review, pharmacological, toxicological and phytochemical data on Argemone mexicana L. (Papaveraceae), Cochlospermum tinctorium Perr. ex A. Rich (Cochlospermaceae), Combretum micranthum G.Don (Combretaceae), Entada africana Guillet Perr. (Mimosaceae), Erythrina senegalensis A. DC (Fabaceae), Mitragyna inermis (Willd) Kuntze (Rubiaceae), Nauclea latifolia Smith syn. Sarcocephalus latifolius (Smith) Bruce (Rubiaceae), Securidaca longepedunculata Fresen (Polygalaceae), Trichilia emetica Vahl. (Meliaceae), and Vernonia colorata (Willd) Drake (Asteraceae) are reported. Some of the collected data could be used to improve the actual herbal drugs and to propose new phytomedicines for the management of malaria and liver diseases.
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Affiliation(s)
- Mahamane Haidara
- Faculté de Pharmacie, Université des Sciences des Techniques et des Technologies de Bamako (USTTB), Mali
| | - Geneviève Bourdy
- Laboratoire de Pharmacochimie et Pharmacologie pour le Développement (PharmaDev) de Toulouse, France
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | | | | | - Rokia Sanogo
- Faculté de Pharmacie, Université des Sciences des Techniques et des Technologies de Bamako (USTTB), Mali
- Département Médecine Traditionnelle, Bamako, Mali
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18
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Pellati F, Rastelli G. Novel and less explored chemotypes of natural origin for the inhibition of Hsp90. MEDCHEMCOMM 2016. [DOI: 10.1039/c6md00340k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on novel classes of natural products whose structures have not yet been thoroughly explored for medicinal chemistry purposes. These novel chemotypes may be useful starting points to develop compounds that alter Hsp90 functionvianovel mechanisms.
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Affiliation(s)
- Federica Pellati
- Department of Life Sciences
- University of Modena and Reggio Emilia
- Modena
- Italy
| | - Giulio Rastelli
- Department of Life Sciences
- University of Modena and Reggio Emilia
- Modena
- Italy
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19
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Ji KL, Zhang P, Li XN, Guo J, Hu HB, Xiao CF, Xie XQ, Xu YK. Cytotoxic limonoids from Trichilia americana leaves. PHYTOCHEMISTRY 2015; 118:61-67. [PMID: 26330216 DOI: 10.1016/j.phytochem.2015.08.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 08/05/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
Ten cedrelone limonoids were isolated from the leaves of Trichilia americana. These compounds include americanolides A-D (1-4), 1,2-dihydrodeacetylhirtin (5), 1α-hydroxy-1,2-dihydrodeacetylhirtin (6), 1α-hydroxy-1,2-dihydrohirtin (7), 1α-methoxy-1,2-dihydrodeacetylhirtin (8), 11β-hydroxy-12α-propanoyloxycedrelone (9), and 1α,11β-dihydroxy-1,2-dihydrocedrelone (10), as well as two previously reported compounds, deacetylhirtin (11) and hirtin (12). Their structures were characterized on the basis of spectroscopic studies, and the assignment of the absolute configuration of americanolide A (1) was supported by single-crystal X-ray diffraction studies. The cytotoxic activities of all isolated compounds were also evaluated against five human tumour cell lines (HL-60, SMMC-7721, A-549, MCF-7, and SW-480) using an MTS assay. Compounds 11 and 12 showed significant cytotoxicity with IC50 values ranging from 0.1 to 0.5 μM, and compounds 5, 6, 7, 8, 9, and 10 exhibited potent or selective cytotoxic activity with IC50 values ranging from 1.0 to 39.6 μM.
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Affiliation(s)
- Kai-Long Ji
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Ping Zhang
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, People's Republic of China
| | - Juan Guo
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, People's Republic of China
| | - Hua-Bin Hu
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, People's Republic of China
| | - Chun-Fen Xiao
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, People's Republic of China
| | - Xiang-Qun Xie
- Department of Pharmaceutical Sciences, Computational Chemical Genomics Screening Center, School of Pharmacy and Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - You-Kai Xu
- Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, Mengla, Yunnan 666303, People's Republic of China.
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20
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Dal Piaz F, Ferro P, Vassallo A, Vasaturo M, Forte G, Chini MG, Bifulco G, Tosco A, De Tommasi N. Identification and mechanism of action analysis of the new PARP-1 inhibitor 2″-hydroxygenkwanol A. Biochim Biophys Acta Gen Subj 2015; 1850:1806-14. [PMID: 25999161 DOI: 10.1016/j.bbagen.2015.05.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 04/27/2015] [Accepted: 05/12/2015] [Indexed: 12/27/2022]
Abstract
BACKGROUND Poly(ADP-ribose) polymerase 1 (PARP-1) activity has been implicated in the pathogenesis of numerous diseases as cancer, inflammation, diabetes and neurodegenerative disorders, therefore the research for new PARP-1 inhibitors is still an active area. METHODS To identify new potential PARP-1 inhibitors, we performed a screening of a small-molecule library consisting of polyphenols isolated from plants used in the traditional medicine, by Surface Plasmon Resonance (SPR). Biochemical and cellular assays were performed to confirm SPR results and select the promising candidate(s). Finally, limited proteolysis and ligand docking analyses allowed defining the protein region involved in the interaction with the putative inhibitor(s). RESULTS The dimeric spiro-flavonoid 2″-hydroxygenkwanol A, member of a relatively recently discovered class of flavonoids containing a spirane C-atom, has been identified as possible PARP-1 inhibitor. This compound showed a high affinity for the polymerase (KD: 0.32±0.05μM); moreover PARP-1 activity in the presence of 2″-hydroxygenkwanol A was significantly affected both when using the recombinant protein and when measuring the cellular effects. Finally, our study suggests this compound to efficiently interact with the protein catalytic domain, into the nicotine binding pocket. CONCLUSION 2″-hydroxygenkwanol A efficiently binds and inhibits PARP-1 at submicromolar concentrations, thus representing a promising lead for the design of a new class of PARP-1 modulators, useful as therapeutic agents and/or biochemical tools. GENERAL SIGNIFICANCE Our study has identified an additional class of plant molecules, the spiro-biflavonoids, with known beneficial pharmacological properties but with an unknown mechanism of action, as a possible novel class of PARP-1 activity inhibitors.
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Affiliation(s)
- Fabrizio Dal Piaz
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Piera Ferro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Antonio Vassallo
- Department of Sciences, University of Basilicata, Via Nazario Sauro 85, 85100 Potenza, SA, Italy
| | - Michele Vasaturo
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giovanni Forte
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Maria Giovanna Chini
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Alessandra Tosco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy.
| | - Nunziatina De Tommasi
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
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21
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Abstract
This review covers the isolation and structure determination of triterpenoids reported during 2012 including squalene derivatives, lanostanes, holostanes, cycloartanes, cucurbitanes, dammaranes, euphanes, tirucallanes, tetranortriterpenoids, quassinoids, lupanes, oleananes, friedelanes, ursanes, hopanes, serratanes, isomalabaricanes and saponins; 348 references are cited.
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22
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Gualtieri MJ, Malafronte N, Vassallo A, Braca A, Cotugno R, Vasaturo M, De Tommasi N, Dal Piaz F. Bioactive limonoids from the leaves of Azaridachta indica (Neem). JOURNAL OF NATURAL PRODUCTS 2014; 77:596-602. [PMID: 24499352 DOI: 10.1021/np400863d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Eight new limonoids (1-8) and one new phenol glycoside (9), along with six known compounds, were isolated from the leaves of Azaridachta indica. The structures of 1-9 were elucidated on the basis of spectroscopic data analysis. Compounds isolated were assayed for their cytotoxicity against different cancer cell lines. Moreover, their ability to interact with the molecular chaperone Hsp90, affecting its biological activity, was tested.
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Affiliation(s)
- Maria J Gualtieri
- Laboratorio de Medicamentos Organicos Sector Campo de Oro, Departamento de Farmacognosia y Medicamentos Organicos, Universidad de Los Andes , detras del HULA, Mérida, 5101, Venezuela
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23
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Malafronte N, Sanogo R, Vassallo A, De Tommasi N, Bifulco G, Dal Piaz F. Androstanes and pregnanes from Trichilia emetica ssp. suberosa J.J. de Wilde. PHYTOCHEMISTRY 2013; 96:437-442. [PMID: 24125178 DOI: 10.1016/j.phytochem.2013.09.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 09/13/2013] [Accepted: 09/16/2013] [Indexed: 06/02/2023]
Abstract
Four pregnanes: 1-methoxy-pregnan-17(R)-1,4-dien-3,16-dione (1), 1-methoxy-pregnan-17(S)-1,4-dien-3,16-dione (2), 2,3-seco-pregnan-17(S)-2,3-dioic acid-16-oxo-dimethyl ester (4), 2α,3α,16α-trihydroxy-5α-pregnan-17(R)-20-yl acetate (7), three androstanes: 1-methoxy-androstan-1,4-dien-3,16-dione (3), 2,3-seco-androstan-2,3-dioic acid-16-oxo-dimethyl ester (5), 3-methoxycarbonyl-2,3-seco-androstan-3-oic acid-16-oxo-2,19-lactone (6), together with three known pregnane derivatives, were isolated from the roots of Trichilia emetica ssp. suberosa. Their structures were determined by means of 1D and 2D NMR spectroscopy, mass spectrometry analysis, as well as by quantum chemical calculations.
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Affiliation(s)
- Nicola Malafronte
- Dipartimento di Farmacia, Università degli Studi di Salerno, 84084 Fisciano, Salerno, Italy
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24
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Vera Saltos MB, Naranjo Puente BF, Malafronte N, Braca A. A new monoterpene glycoside fromSiparuna thecaphora. Nat Prod Res 2013; 28:57-60. [DOI: 10.1080/14786419.2013.843179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Vassallo A, Vaccaro MC, De Tommasi N, Dal Piaz F, Leone A. Identification of the plant compound geraniin as a novel Hsp90 inhibitor. PLoS One 2013; 8:e74266. [PMID: 24066128 PMCID: PMC3774728 DOI: 10.1371/journal.pone.0074266] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Accepted: 07/30/2013] [Indexed: 01/06/2023] Open
Abstract
Besides its function in normal cellular growth, the molecular chaperone heat shock protein 90 (Hsp90) binds to a large number of client proteins required for promoting cancer cell growth and/or survival. In an effort to discover new small molecules able to inhibit the Hsp90 ATPase and chaperoning activities, we screened, by a surface plasmon resonance assay, a small library including different plant polyphenols. The ellagitannin geraniin, was identified as the most promising molecule, showing a binding affinity to Hsp90α similar to that of 17-(allylamino)-17-demethoxygeldanamycin (17AGG). Geraniin was able to inhibit in vitro the Hsp90α ATPase activity in a dose−dependent manner, with an inhibitory efficiency comparable to that measured for 17-AAG. In addition, this compound compromised the chaperone activity of Hsp90α, monitored by the citrate synthase thermal induced aggregation assay. Geraniin decreased the viability of HeLa and Jurkat cell lines and caused an arrest in G2/M phase. We also proved that following exposure to different concentrations of geraniin, the level of expression of the client proteins c-Raf, pAkt, and EGFR was strongly down−regulated in both the cell lines. These results, along with the finding that geraniin did not exert any appreciable cytotoxicity on normal cells, encourage further studies on this compound as a promising chemical scaffold for the design of new Hsp90 inhibitors.
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Affiliation(s)
- Antonio Vassallo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | | | | | - Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università degli Studi di Salerno, Fisciano, Italy
- * E-mail:
| | - Antonella Leone
- Dipartimento di Farmacia, Università degli Studi di Salerno, Fisciano, Italy
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Terracciano S, Chini MG, Piaz FD, Vassallo A, Riccio R, Bruno I, Bifulco G. Dimeric and trimeric triazole based molecules as a new class of Hsp90 molecular chaperone inhibitors. Eur J Med Chem 2013; 65:464-76. [DOI: 10.1016/j.ejmech.2013.05.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2012] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 01/05/2023]
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Piaz FD, Vassallo A, Temraz A, Cotugno R, Belisario MA, Bifulco G, Chini MG, Pisano C, De Tommasi N, Braca A. A Chemical–Biological Study Reveals C9-type Iridoids as Novel Heat Shock Protein 90 (Hsp90) Inhibitors. J Med Chem 2013; 56:1583-95. [DOI: 10.1021/jm301398y] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Antonio Vassallo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Viale
dell’Ateneo Lucano 10, 85100 Potenza, Italy
| | - Abeer Temraz
- Faculty of Pharmacy, Al Azhar University, Nasr-City, 11371 Cairo, Egypt
| | - Roberta Cotugno
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Maria A. Belisario
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Giuseppe Bifulco
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Maria G. Chini
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Claudio Pisano
- Sigma-Tau Research and Development, Via Pontina Km 30,400, 00040 Pomezia
(RM), Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Ponte Don Melillo,
84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento
di Farmacia, Università di Pisa,
Via Bonanno 33, 56126 Pisa,
Italy
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Pesca MS, Dal Piaz F, Sanogo R, Vassallo A, Bruzual de Abreu M, Rapisarda A, Germanò MP, Certo G, De Falco S, De Tommasi N, Braca A. Bioassay-guided isolation of proanthocyanidins with antiangiogenic activities. JOURNAL OF NATURAL PRODUCTS 2013; 76:29-35. [PMID: 23268742 DOI: 10.1021/np300614u] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The proangiogenic members of the vascular endothelial growth factor (VEGF) family and related receptors play a central role in the modulation of pathological angiogenesis. In order to identify plant compounds able to interfere in the VEGFs/VEGFR-1 (Flt-1) recognition by VEGF family members, the extracts of the aerial parts of Campsiandra guayanensis and Feretia apodanthera were screened by a competitive ELISA-based assay. By using this bioassay-oriented approach five proanthocyanindins, including the new natural compounds (2S)-4',5,7-trihydroxyflavan-(4β→8)-afzelechin (1) and (2S)-4',5,7-trihydroxyflavan-(4β→8)-epiafzelechin (2) and the known geranin B (3), proanthocyanidin A2 (4), and proanthocyanidin A1 (5), were isolated. The study of the antiangiogenic activities of compounds 1-5 using ELISA and SPR assays showed compound 1 as being the most active. The antiangiogenic activity of 1 was also confirmed in vivo by the chicken chorioallantoic membrane assay. Our results indicated 1 as a new antiangiogenic compound inhibiting the interaction between VEGF-A or PlGF and their receptor VEGRF-1.
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Affiliation(s)
- Maria S Pesca
- Dipartimento di Farmacia, Università degli Studi di Salerno, via Ponte Don Melillo, 84084 Fisciano (SA), Italy
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Faiella L, Piaz FD, Bisio A, Tosco A, De Tommasi N. A chemical proteomics approach reveals Hsp27 as a target for proapoptotic clerodane diterpenes. MOLECULAR BIOSYSTEMS 2013; 8:2637-44. [PMID: 22802135 DOI: 10.1039/c2mb25171j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Clerodane diterpenoids are a class of naturally occurring molecules widely distributed in the Lamiaceae family. Neo-clerodane diterpenoids from Salvia ssp were recently described as compounds inhibiting the proliferation of human cancer cell lines. To gain new insights into molecular mechanism(s) underlying the antitumor potential of this class of compounds, we used a chemical proteomics approach to analyse the cellular interactome of hardwickiic acid (HAA) selected as a representative molecule. HAA was linked to an opportune 1,1'-carbonyldiimidazole modified by 1,12-dodecanediamine and then immobilized on a matrix support. The modified beads were then used as bait for fishing the potential partners of HAA in a U937 cell lysate. We identified heat shock protein 27 (Hsp27), an ATP-independent antiapoptotic chaperone characterized for its tumorigenic and metastatic properties and now referenced as a major therapeutic target in many types of cancer, as a major HAA partner. Here, we also report the study of HAA-Hsp27 interaction by means of a panel of chemical and biological approaches, including surface plasmon resonance measurements limited proteolysis, and biochemical assays. Our data suggest that HAA could provide a potential tool to develop strategies for the discovery of Hsp27 chemical inhibitors.
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Affiliation(s)
- Laura Faiella
- Dipartimento di Scienze Farmaceutiche, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy
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Dal Piaz F, Vassallo A, Chini MG, Cordero FM, Cardona F, Pisano C, Bifulco G, De Tommasi N, Brandi A. Natural iminosugar (+)-lentiginosine inhibits ATPase and chaperone activity of hsp90. PLoS One 2012; 7:e43316. [PMID: 22916240 PMCID: PMC3423353 DOI: 10.1371/journal.pone.0043316] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 07/19/2012] [Indexed: 01/04/2023] Open
Abstract
Heat shock protein 90 (Hsp90) is a significant target in the development of rational cancer therapy due to its role at the crossroads of multiple signaling pathways associated with cell proliferation and cell viability. The relevance of Hsp90 as a therapeutic target for numerous diseases states has prompted the identification and optimization of novel Hsp90 inhibitors as an emerging therapeutic strategy. We performed a screening aimed to identify novel Hsp90 inhibitors among several natural compounds and we focused on the iminosugar (+)-lentiginosine, a natural amyloglucosidases inhibitor, for its peculiar bioactivity profile. Characterization of Hsp90 inhibition was performed using a panel of chemical and biological approaches, including limited proteolysis, biochemical and cellular assays. Our result suggested that the middle domain of Hsp90, as opposed to its ATP-binding pocket, is a promising binding site for new classes of Hsp90 inhibitors with multi-target anti-cancer potential.
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Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
| | - Antonio Vassallo
- Dipartimento di Chimica, Università degli Studi della Basilicata, Potenza, Italy
| | - Maria Giovanna Chini
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
| | - Franca M. Cordero
- Departimento di Chimica “Ugo Schiff”, Università of Firenze, Sesto Fiorentino, Italy
| | - Francesca Cardona
- Departimento di Chimica “Ugo Schiff”, Università of Firenze, Sesto Fiorentino, Italy
| | | | - Giuseppe Bifulco
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Scienze Farmaceutiche e Biomediche, Università di Salerno, Fisciano, Italy
- * E-mail:
| | - Alberto Brandi
- Departimento di Chimica “Ugo Schiff”, Università of Firenze, Sesto Fiorentino, Italy
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Yuan CM, Zhang Y, Tang GH, Li SL, Di YT, Hou L, Cai JY, Hua HM, He HP, Hao XJ. Senegalensions A-C, Three Limonoids from Khaya senegalensis. Chem Asian J 2012; 7:2024-7. [DOI: 10.1002/asia.201200320] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Indexed: 11/08/2022]
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